<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    <script src="../js/ajax_v2.js"></script>
    <script>

        ajax('post' , '../php/reg.php' , {username:'yyy' , userpwd:"555",usertel:777} ,'json' , function(data) {
            console.log(data);
        } )


    </script>
    
</body>
</html>